Charles scrivetst



(No Model.)

O. SORIVENl Doon CLOSING DEVICE.

No. 490,990. Y Patented Jan. 31, 1893.

Y h Tromvgm THE mams PETERS co. PHoTuLlmo., wAsHmcroN, D c

UNITED STATES PATENT OFFICE.

CHARLES SCRIVEN, OF LEEDS, ENGLAND.

Doon-CLOSING DEVICE.

SPECIFICATION forming part of Letters Patent No..490,990, dated January351, 189,3. Application tiled August 18, 1892. Serial No. 443.386. (Nomodel.) Patented in England August 21, 1891, No. 14,157-

.Zo all whom it may concern:

Be it known that I, CHARLES SCRIVEN, a subject of the Queen of GreatBritain and Ireland, and a resident of Leeds, county of York, England,have invented certain Improvements in Door-Closing Devices, (which werepatented in Great Britain August 21,1891, No. 14,152) of which thefollowing is a speciication.

My invention consists in certain improvements in the construction ofdevices for closing doors and for holding them open in predeterminedpositions, and in carrying out my invention I employ elastic materialsuch as india rubber, caoutchouc dto., (hereinafter referred to by themore general term india rubber) as the spring, which is arranged as anaxial connection between two parts turning one upon the other and actsby torsion.

In the accompanying drawings,Figure 1 is an elevation partly in sectionof part of a door frame or casing and door provided with one form of myimprovement; Fig. 2 is' a corresponding view of a modification; Fig. 3isa plan view of the construction shown in Fig. 2; Figs. 4 and 5 areplan views of other modifications; Figs. 6 and 7V are views of anotherconstruction of my invention, and Figs. 8, 9 and l0 are views of stillanother modification.

Referring to the construction illustrated in Fig. l, cl, is the doorframe or casing, h the door, c a bracket or part attached to the casingct; d an arm or lever pivoted to the bracket.

It is provided with a double or forked end d2 for taking upon orspanning the brack'etc, and turning thereon by the movement of the door.Both the bracket c, and the arm d, are

Yperforated axially, (by preference with rectangular openings) toreceive a piece of india rubber e, which at its center is xed in thesaid bracket c, and engages with the ends cl2 d2, the arrangement beingsuch as to allow of two twists, vim-one at each end of the central fixedpart of the india-rubber, thus accumulating sufficient energy forclosing a somewhat heavy door. Each side of the bracket c, is enlargedor recessed in its interior to give room for the enlargement of theindia-rubber during twisting, as the door to which it is attached isopened. A stud f, which is fixed to the other end of the arm or leverd`,takes into vthe arm orlever d.. vare provided with correspondingaxial perter as to allow the door to be readily closed again by pullingor pushing the door.

In the construction shown in Fig. 2 the india rubber is arranged to havebut one twist given to it, and the door can be held open inpredetermined positions.

As shown in the plan View Fig. 8, the door is arranged to open bothWays. As in the construction already described, there is a bracket cattached to the door frame or casing. This bracket is provided with abearing c in which is fitted to turn freely a tubular boss d on Thisboss and the bracket forations for receiving the india rubber torsionspring e to the opposite ends of which these parts are connected. A studfon the lever d is adapted lto work in a slot ff in a plate g which isprovided with notches g and g2 for the reception of the stud f to holdthe door in the wide open position either Way, as indicated by dottedlines in Fig. 3.

In t-he construction shown in Figs. 4t and 5, the door is arranged toopen in one direction only, the closing device being shown in one caseas adapted for use on oneside of the door and in the other case for useon the other side of the door, as will be readily understood. As shownin Figs. t and 5, these constructions require each only one notch g2 inthe slotted plate g to provide for holding the door in the full openposition, as indicated by dotted lines.

The construction illustrated in lFigs and 7, has been devised in orderthat it may be applied to a door hung either on the right or left hand,and also to provide for giving additional twist to the rubber torsionspring if required. y There is as before, a bracket c to be attached tothe door frame or casing and this is provided with a cylindrical bearingc through it. Into one end of this bearing there is fitted to turnfreely the tubular boss d' of the arm o'r lever d. At the other end ofthe bearing-c there is fitted a cap m provided with a IOS) series ofholes o and capable of being turned in the bracket for adjustment. Theindia rubber torsion spring e is fixed at one end to the lever cl and atthe other end to the cap m. When the lever CZ is brought into therequired position with the studftaking into the slot of the plate g, apin p (Fig. 7) is put through one of the small holes and into acorresponding hole in the bracket c, to prevent the cap m from turningon its axis. By this means it will readily be seen that this device canbe applied either to a right or lefthand door and any desired tensiongiven to the spring, by adjusting the cap m.

In the construction illustrated in Figs. 8, 9 and l0, I have shownmyinvention as applied to'a swing door, that is, one which opens in bothdirections. The bracket c in this case is recessed into the head of thedoor fratrie and is provided with projectingbranches having notches orrecesses c2,threein thepresent instance. The lever or arm d in this caseis secured to the top edge of the door and its boss dis fit-ted to turnin the bracket or bearing c so that these two together form the upperaxis or pivot upon which the door turns. The bracket or part c and thearm or level' d are provided with corresponding openings for thereception and securing ot` the opposite ends of the rubber torsionspring e, as in the construction shown in Fig. 2. The boss cZis, asbefore, recessed or .enlarged interiorly to allow room for the twist ofthe rubber when the door is swung in either direction. The arm CZ isprovided with a spring latch h to take into any one of the recesses02,6202 for holding the door when it is either in the closed position oropen in either direction.

I claim as my invention:

l. The herein described device for closing doors, comprising a bracketand a lever pivoted thereto, one of these parts being adapted to beconnected to the door and the other to the door frame, with a torsionspring of rubber or similar elastic material forming an axial connectionbetween the lever and bracket, substantially as described.

2. The herein described device for closing doors, comprising a bracketand a lever pivoted to the bracket, one of these parts being adapted tobe connected with the door and the other to the door frame, incombination with a torsion spring of rubber or similar Intestimonywhereor" I have signed mynameto this specification in thepresence of two subscribing Witnesses.

CHARLES SCRIVEN. Witnesses: x

ALL JOUING, Sr., CHAs. GILLIARD.

